CN108544757A - The single screw rod pump type 3D printing head of electric-machine directly-driven - Google Patents
The single screw rod pump type 3D printing head of electric-machine directly-driven Download PDFInfo
- Publication number
- CN108544757A CN108544757A CN201810502717.4A CN201810502717A CN108544757A CN 108544757 A CN108544757 A CN 108544757A CN 201810502717 A CN201810502717 A CN 201810502717A CN 108544757 A CN108544757 A CN 108544757A
- Authority
- CN
- China
- Prior art keywords
- pump
- rotor
- screw
- motor
- single screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010146 3D printing Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000007639 printing Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
Abstract
A kind of single screw rod pump type 3D printing head of electric-machine directly-driven, including single-screw (single screw) pump, AC servo motor and rotary transformer three parts, single-screw pump is constituted by the cylindrical pump rotor with helicla flute and circular tube shaped pump case, single-screw (single screw) pump becomes one with AC servo motor, rotor drives pump rotor rotation by transmission cover, speed to control material supply and direction, and rotary speed and direction are all adjustable, it can make material suck-back simultaneously, to prevent from occurring material water clock at the end of feed；The present apparatus uses electric-machine directly-driven technology, reduce volume, reduce power loss, material is stirred in conveying process by single-screw (single screw) pump, it is defeated to realize that different conditions object mutually mixes, by to the control realization ejection pressure of AC servo motor and accurately controlling for flow, having many advantages, such as to pulse small and conveying steadily, it is conveniently adjusted and safeguards.
Description
Technical field
The invention belongs to 3D printing technique fields, are related to a kind of single screw rod pump type 3D printing head of electric-machine directly-driven, are used for real
The uniformly continuous of material of sticky shape is supplied and controlled in existing jet printing type 3D printing.
Background technology
In increases material manufacturing technology, 3D printing technique has been to meet a key technology of the mankind and social demand, and 3D is beaten
The type of print technology is various, and wherein jet printing type 3D printing is widely used, but there are the problem of it is also extremely apparent, such as the limit of material
Calmly, the problem of printing head is easy to block, machining accuracy etc., this also just illustrates the key of 3D printing nozzle, 3D printing nozzle
Design directly affect the precision problem of the object printed, though present screw rod 3D printing nozzle can improve print speed,
But to the precision of printing, an always current important problem such as limitation of structure size and material directly affects
The uniformity and continuity of feeding process.
In order to solve the deficiencies in the prior art, spy proposes a kind of single screw rod pump type 3D printing head of electric-machine directly-driven, is used for real
Existing jet printing type 3D printing technique adapts to the material to a variety of different conditions in feed while conveying, and may be implemented reversely to fall
It inhales, and with the features such as compact-sized, printing precision is high.
Invention content
The present invention provides a kind of single screw rod pump type 3D printing head of electric-machine directly-driven, for realizing the sticky of jet printing type 3D printing
The accurate supply and control of shape material.
The technical solution adopted by the present invention is as follows：
A kind of single screw rod pump type 3D printing head of electric-machine directly-driven, including single-screw (single screw) pump, AC servo motor and rotary transformer three
Part；Single-screw (single screw) pump housing a pair of bearings is mounted on inside the rotor of AC servo motor；Rotary transformer is arranged in friendship
Flow servo motor side；
The single-screw (single screw) pump includes pump rotor 3, pump case 4, material inlet 12, material outlet 1 and nozzle 2；Single-screw (single screw) pump
Pump rotor 3 is the intermediate cylindrical shape with isometric helix slot, and both ends respectively there are one the axial center hole being mutually communicated and
Radial hole；The axial center hole of 3 one end of pump rotor is communicated with radial hole with material inlet 12, the axial center hole and diameter of the other end
It is communicated to hole with material outlet 1, material outlet 1 is connected with nozzle 2；The helicla flute of the pump rotor 3 of single-screw (single screw) pump is interior with pump case 4
Multiple seal chambers are formd between cylinder hole face；Pump case 4 is circular tube shaped, the external cylindrical surface of the interior cylindrical hole and pump rotor 3 of pump case 4
Between have narrow gap；Pump case 4 is fixedly connected with left end cap 19, and the both ends of pump case 4 are supported on rotor 5 by bearing
Central bore in；4 side of pump case is fixedly connected with transmission cover 15, and sealing ring 14 is housed；5 one end of rotor and transmission cover
15 are fixedly connected, and transmission cover 15 is connect with pump rotor 3 by spline, and are provided with sealing ring 14；Motor side cover 8 and left end cap 19
Peripheral edge portion be fixedly connected motor casing 7, the central hole of the two is connected to the both ends of pump rotor 3 by bearing, the two
Outside is equipped with outer bearing cover 9.
The AC servo motor include rotor 5, motor stator 6, motor casing 7, motor side cover 8, permanent magnet 17,
Coil 18；Rotor 5 is coaxially assembled with motor stator；Motor stator includes stator core 6, permanent magnet 17 and coil 18, is handed over
6 circumference of stator core of flow servo motor is arranged in equal spacing with axial pass trough, and permanent magnet 17 and coil 18 are distributed in stator
In the slot of iron core 6；7 outside of motor casing is furnished with radiating fin, and the inside of motor casing 7 is cylinder pore structure, and motor stator is fixed on electricity
In the endoporus of casing 7.
The rotary transformer is mounted on the outside of an outer bearing cover 9, and rotary transformer is divided into rotation and becomes 10 He of stator
Rotation becomes 11 two parts of rotor；Rotation becomes rotor 11 and is fixedly connected with pump rotor 3, and rotation becomes stator 10 and is fixedly mounted on outer bearing cover 9
In the groove of outside, rotation becomes stator 10 and rotation change rotor 11 is coaxial, and end face flushly mounts in end cap 13.
The present invention, as power source, has the pump rotor of helicla flute and interior circular hole using AC servo motor using cylinder
Pump stator form a kind of new single-screw (single screw) pump；Pump rotor and pump stator are metal material, pass through fit clearance therebetween
Realize sealing.Single-screw (single screw) pump is arranged in AC servo motor center portion, rotor 5 drives pump rotor 3 to revolve by transmission cover 15
Turn, the speed that single-screw (single screw) pump supplies material is adjusted by controlling the rotating speed of rotor 5, realizes that stablizing for material conveys and connect
Continuous supply.The present apparatus realizes the integrated design of AC servo motor and single-screw (single screw) pump, eliminates driving member and connection number of packages
Amount and volume, simplify structure, improve transmission efficiency.It is precisely and continuous with simple and compact for structure, easy to maintenance and feed
The advantages that, there is higher engineering practical value.
Description of the drawings
A kind of outline drawing of the single screw rod pump type 3D printing head of electric-machine directly-drivens of Fig. 1.
A-A sectional views in Fig. 2 Fig. 1.
B-B sectional views in Fig. 3 Fig. 1.
Specific implementation mode
The implementation process of the present invention is described below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Fig. 3, a kind of single screw rod pump type 3D printing head of electric-machine directly-driven, including single-screw (single screw) pump, AC servo
Motor and rotary transformer three parts；Single-screw (single screw) pump housing a pair of bearings is mounted on inside the rotor of AC servo motor；
Rotary transformer is arranged in AC servo motor side；Including material outlet 1, nozzle 2, pump rotor 3, pump case 4, rotor 5,
Motor stator, motor casing 7, motor side cover 8, outer bearing cover 9, rotation change stator 10, rotation change rotor 11, material inlet 12, rotation become end
Lid 13, sealing ring 14, transmission cover 15, inside cap 16, permanent magnet 17, coil 18, left end cap 19.
Single-screw (single screw) pump is made of pump rotor 3 and pump case 4, and wherein pump rotor 3 uses ladder circle column construction, it is intermediate most
Thick cylinder is provided with the helicla flute of equal lead；Pump case 4 is circular tube shaped, the external cylindrical surface of the interior cylindrical hole and pump rotor 3 of pump case 4
Between have narrow gap；Pump case 4 is relatively fixed, and is formed between the helicla flute of the pump rotor 3 of rotation and the interior circular hole of pump case 4
The single-screw (single screw) pump pump body portion of screw propulsion.
Single-screw (single screw) pump is integrally embedded in the center portion of the rotor 5 of AC servo motor, between pump rotor 3 and rotor
It is fixedly connected by transmission cover 15；It is fixedly connected between pump case 4 and the left end cap 19 of AC servo motor, motor stator is fixed on
In 7 intermediate circular hole of motor casing, and it is fixedly connected with left end cap 19 and motor side cover 8.
A kind of course of work of the single screw rod pump type 3D printing head of electric-machine directly-driven：
When motor rotates forward, rotor 5 drives pump rotor 3 to rotate by transmission cover 15, is generated between pump rotor 3 and pump case 4
Helical relative movement, and negative pressure is formed inside single-screw (single screw) pump, material is inhaled into from material inlet 12 at this time, and with rotation
Helicla flute on pump rotor 5 is sent out to material outlet 1 together, is sprayed through nozzle 2；Rotor rotating speed is higher, is sprayed through nozzle 2
Material speed it is faster.
When motor stalls, single-screw (single screw) pump is stopped, and at nozzle 2 other than there is water clock, has no material spray
Go out.
When motor reversal, rotor 5 drives pump rotor 3 to rotate backward by transmission cover 15, pump rotor 3 and pump case 4
Between generate reverse acting spiral movement, material is inhaled into from material outlet 1 at this time, and with the helicla flute on the pump rotor of rotation 5
It is sent out together to material inlet 12, the material of nozzle 2 is reversed inspiration, i.e., the weeping without material occurs, while at nozzle 2
Material be reversed in inspiration single-screw (single screw) pump, it is not easy to there is the blocking of nozzle.
A kind of operation principle of the single screw rod pump type 3D printing head of electric-machine directly-driven：
Motor is integrated with single-screw (single screw) pump, and one end of rotor 5 is connect with transmission cover 15, one end of transmission cover 15 and pump case 4
It is connected with spline, when electrical power, rotor 5 drives pump rotor 3 to rotate by transmission cover 15, when material is from material inlet 12
Into in single-screw (single screw) pump, material passes through in the seal chamber between pump case 4 and pump rotor 3 so that material pressure in seal chamber increases
Greatly, material is finally made uniformly to send to single-screw (single screw) pump material outlet 1 and be sprayed from nozzle 2, in feeding process, by motor
Rotating speed control, the adjusting of the rotating speed of the pump rotor 3 of single-screw (single screw) pump is realized, so as to adjust material feed speed；Stopping supplying
When material, by the control to motor steering, realize that the extrusion supply of material or suck-back, the reverse rotation of single-screw (single screw) pump will not make
Material is by extra ejection, while the nozzle of clean nozzle.
Claims (3)
1. a kind of single screw rod pump type 3D printing head of electric-machine directly-driven, including single-screw (single screw) pump, AC servo motor and rotary transformer
Three parts；Single-screw (single screw) pump housing a pair of bearings is mounted on inside the rotor of AC servo motor；Rotary transformer is arranged in
AC servo motor side；
The single-screw (single screw) pump includes pump rotor（3）, pump case（4）, material inlet（12）, material outlet（1）And nozzle（2）；
The pump rotor of single-screw (single screw) pump（3）It is the intermediate cylindrical shape with isometric helix slot, and respectively there are one be mutually communicated at both ends
Axial center hole and radial hole；Pump rotor（3）The axial center hole of one end and radial hole and material inlet（12）It communicates, the other end
Axial center hole and radial hole and material outlet（1）It communicates, material outlet（1）It is connected with nozzle（2）；The pump of single-screw (single screw) pump turns
Son（3）Helicla flute and pump case（4）Interior cylindrical hole face between form multiple seal chambers；Pump case（4）For circular tube shaped, pump case
（4）Interior cylindrical hole and pump rotor（3）External cylindrical surface between have narrow gap；Pump case（4）With left end cap（19）It is fixed
Connection, pump case（4）Both ends rotor is supported on by bearing（5）Central bore in；Pump case（4）Side and transmission cover
（15）It is fixedly connected, and sealing ring is housed（14）；Rotor（5）One end and transmission cover（15）It is fixedly connected, transmission cover（15）
With pump rotor（3）It is connected by spline, and is provided with sealing ring；Motor side cover（8）And left end cap（19）Peripheral edge portion fix
It is connected to motor casing（7）, the central hole of the two is connected to pump rotor by bearing（3）Both ends, the outside of the two is equipped with outer
Bearing cap（9）.
2. the single screw rod pump type 3D printing head of electric-machine directly-driven according to claim 1, it is characterised in that：The exchange is watched
It includes rotor to take motor（5）, motor stator, motor casing（7）, motor side cover（8）, permanent magnet（17）, coil（18）；Motor
Rotor（5）It is coaxially assembled with motor stator；Motor stator includes stator core（6）, permanent magnet（17）And coil（18）, exchange watches
Take the stator core of motor（6）Circumference is arranged in equal spacing with axial pass trough, permanent magnet（17）And coil（18）It is fixed to be distributed in
Sub- iron core（6）Slot in；Motor casing（7）Outside is furnished with radiating fin, motor casing（7）Inside be cylinder pore structure, motor stator
It is fixed on motor casing（7）Endoporus in.
3. the single screw rod pump type 3D printing head of electric-machine directly-driven according to claim 1, it is characterised in that：The rotation becomes
Depressor is mounted on an outer bearing cover（9）Outside, rotary transformer be divided into rotation become stator（10）Become rotor with rotation（11）Two
Point；Rotation becomes rotor（11）With pump rotor（3）It is fixedly connected, rotation becomes stator（10）It is fixedly mounted on outer bearing cover（9）Outer concave
In slot, rotation becomes stator（10）Become rotor with rotation（11）Coaxially, and end face is flushly mounted in end cap（13）In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810502717.4A CN108544757A (en) | 2018-05-23 | 2018-05-23 | The single screw rod pump type 3D printing head of electric-machine directly-driven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810502717.4A CN108544757A (en) | 2018-05-23 | 2018-05-23 | The single screw rod pump type 3D printing head of electric-machine directly-driven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108544757A true CN108544757A (en) | 2018-09-18 |
Family
ID=63495440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810502717.4A Pending CN108544757A (en) | 2018-05-23 | 2018-05-23 | The single screw rod pump type 3D printing head of electric-machine directly-driven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108544757A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1188669A (en) * | 1966-12-26 | 1970-04-22 | Magnesita S A | Improvements in or relating to Rotary Pumps |
| US20020197171A1 (en) * | 2001-06-06 | 2002-12-26 | Yoshinori Ojima | Vacuum pump |
| CN103762780A (en) * | 2014-01-17 | 2014-04-30 | 西安交通大学 | Alternating current servo direct-drive type three-screw electric hydraulic pump |
| CN105402273A (en) * | 2015-12-22 | 2016-03-16 | 武汉理工通宇新源动力有限公司 | Motor-driven hydraulic clutch and automobile |
-
2018
- 2018-05-23 CN CN201810502717.4A patent/CN108544757A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1188669A (en) * | 1966-12-26 | 1970-04-22 | Magnesita S A | Improvements in or relating to Rotary Pumps |
| US20020197171A1 (en) * | 2001-06-06 | 2002-12-26 | Yoshinori Ojima | Vacuum pump |
| CN103762780A (en) * | 2014-01-17 | 2014-04-30 | 西安交通大学 | Alternating current servo direct-drive type three-screw electric hydraulic pump |
| CN105402273A (en) * | 2015-12-22 | 2016-03-16 | 武汉理工通宇新源动力有限公司 | Motor-driven hydraulic clutch and automobile |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180918 |